#!/bin/bash -x

# -------------------------------------------------------------------------- #
# Copyright 2002-2016, OpenNebula Project, OpenNebula Systems                #
#                                                                            #
# Licensed under the Apache License, Version 2.0 (the "License"); you may    #
# not use this file except in compliance with the License. You may obtain    #
# a copy of the License at                                                   #
#                                                                            #
# http://www.apache.org/licenses/LICENSE-2.0                                 #
#                                                                            #
# Unless required by applicable law or agreed to in writing, software        #
# distributed under the License is distributed on an "AS IS" BASIS,          #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
# See the License for the specific language governing permissions and        #
# limitations under the License.                                             #
#--------------------------------------------------------------------------- #

# mvds host:remote_system_ds/disk.i fe:SOURCE vmid dsid
#   - fe is the front-end hostname
#   - SOURCE is the path of the disk image in the form DS_BASE_PATH/disk
#   - host is the target host to deploy the VM
#   - remote_system_ds is the path for the system datastore in the host
#   - vmid is the id of the VM
#   - dsid is the target datastore (0 is the system datastore)

SRC=$1
DST=$2

VMID=$3
DSID=$4

if [ -z "${ONE_LOCATION}" ]; then
    TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
else
    TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
fi

. $TMCOMMON

SRC_PATH="$(arg_path $SRC)"
SRC_HOST="$(arg_host $SRC)"
SRC_PATH_SNAP="${SRC_PATH}.snap"

DST_SNAP="${DST}.snap"

#-------------------------------------------------------------------------------
# Move the image back to the datastore
#-------------------------------------------------------------------------------

log "Moving $SRC to datastore as $DST"
exec_and_log "$SCP -r $SRC $DST" "Error copying $SRC to $DST"

if $SSH $SRC_HOST ls ${SRC_PATH_SNAP} >/dev/null 2>&1; then
    exec_and_log "rsync -r --delete ${SRC_HOST}:${SRC_PATH_SNAP}/ ${DST_SNAP}"
fi

exit 0
